Year	sq. km
1990	10699608.5
1991	10645088.610000001
1992	10590568.72
1993	10536048.830000002
1994	10481528.939999998
1995	10427009.050000003
1996	10372489.160000002
1997	10317969.270000003
1998	10263449.379999999
1999	10208929.490000004
2000	10154409.599999998
2001	10099097.919999996
2002	10043786.240000004
2003	9988474.559999999
2004	9933162.88
2005	9877851.199999997
2006	9822539.520000001
2007	9767227.840000002
2008	9711916.159999996
2009	9656604.48
2010	9601292.799999999
2011	9572388.48
2012	9543467.360000001
2013	9514546.239999996
2014	9485625.120000001
2015	9456703.999999998
2016	9426994.799999997
2017	9392385.2
2018	9369198.599999998
2019	9344163.699999997
2020	9320331.1
2021	9295696.965999998